Deep well pump



D. w. HOFERER DEEP WELL PUMP July 2, 1940.

2 sheets-sheet 1 Filed Match 14, 1938 D. w. HQFERER 2,206,461 l DEEP WELL. PUMP July z, 1940.

2 Sheets-Sheet 2 Filed March 14, 1938 INVENTOR .DM/f4 W Hoff/mn.

M' l l Patented July 2, 1940 .PATENT OFFICE ,Y

2 Claims.

. This invention relates to a deep well pump and the prime object of my invention is to provide a pump which will effectively operate in a well containing considerable quantitiesl of sand. A

feature of my invention is to provide a deep well pump with adequate packing whereby sand is prevented from settling around the moving parts, and by this means I materially prolong the use;= ful life of the pump.

Another object is to provide a pump o i the character stated which is simple in construction, effective In operation and inexpensive to manuu facture.

Other objects, advantages and features of my invention may appear from the accompanying drawings, the subjoined detailed description and the appended claims.

In the drawings:

Figure 1 is a diagrammatic, longitudinal sectional View of the pump.

Figure 2 is a fragmentary longitudinal sectional view of the upper portion of the pump.

Figure 3 is a fragmentary longitudinal sectional view of the central portion of the pump.

Figure 4 is a fragmentary longitudinal sectional View of the lower portion of the pump. y

Figure 5 is a sectional view taken online E-S 1 of Figure 2.

Figure 6 is a sectional view taken on line. 6-76 of Figure 2.

Referring more particularly to the drawings, the numeral I indicates the tubing which extends from the surface of the well to adjacent the bottom thereof. Adjacent the lower end of the tubing a pipe section 2 is inserted and on the inner surface of this section a seat 3 is cut. A pump barrel 4 is positioned within the tubing I adjacent its lower end and this pump barrel includes a ring 5 which rests on the seat 3. A seal is thus 40 provided which prevents sand and fluid from passing .downwardly below the seat 3 and between the tubing and the barrel. A pump plunger 6 is reciprocally mounted within the barrel 4 and closely lits this barrel through the seating ring 5 and also at the lower end. Below the ring 5, I provide two sets of packing, preferably ilbrous,

although other types of packing might be used.

This packing is shown at 1 and 3. The packing 1 is pressed inwardly against the plunger by a spring 9 which bears against the top of the pack ing, and the packing 8 is similarly pressed against the plunger by the spring I which bears against the top of said packing. This packing will wipe the plunger as the plunger reciprocates, and sand is prevented from accumulating around the (Cl. 10S-181) plunger due to the constant upward flow of iluid as vn'll be further described. A standing valve Il, of usual and well known design, is mounted on the lower end of the barrel 4, a travelling valve l2, of usual and well known design, is mounted on the lower end of the plunger 6. A check Ivalve I3 is mounted in a cage I 4 on the upper end of the plunger. The valves II, I2, I3 are all preferably of the ball type, such as are usually used in oil well pumps. A rod I5 screws into the top of the cage Ill and extends upwardly to a clutch head I6 and this clutch head in turn ls threaded on to the lower end of the sucker rods il. The rod I 5 passes through a guide block i3, which screws into the upper end of the barrel r'.l'he tubing il may be assembled from a plurality of sections and this is preferably the case, particularly since the plunger should accurately t the inner surface of the barrel adjacent the upper end of said barrel, and particularly above the seat 3, as shown in Figure 2. The seating ring 51s of suflicient thickness so thatfthe plunger will fit accurately withinit. T'he seating ring 5 screws into a collar I9, the upper end 2t of which is of sufficient thickness to closely surround the plunger 6. An annular space 2l is provided above the collar I9 and between the plunger and the inner vwall of the barrel. An annular space v22 is provided between the tubing and the outer surface of the barrelsubstantiallyas shown in Figure 2.

A plurality of ports 23 extend through the barrel `4l above the collar I9, thus connecting the spaces 2l and `22. The purpose of these ports is to enable fluid to wash over the top of the collar I9 and prevent the accumulation of sand around the plunger at this point. stroke of the plunger, fluid will be forced from the space 2l through the ports 23, the-nce into the space 22 and upwardly in the tubing to the surface. This rapid flow will effectively preventl the accumulation of sand at the point stated'.A .A plurality of ports 24 are cut through the collar IS and the solid areas between the ports 24 form fingers 25 which yieldably press against the tubing I, for the purpose of assisting ln holding the pump in position on the seat 3. This construction is termed a spring lock. The ports 24 also vent the space between the plunger and the inner wall of the collar I9 so that sand, fluid and the like can pass upwardly into the annular space 22.

Having described my invention, I claim;

1. In a deep well pump, tubing in which the pump operates, said pump including a barrel, a

On the uphollow plunger reciprocally mounted in the barrel, a seat in the tubing, a seating ring on the barrel, said seating ring resting on the seat in the tubing, said barrel including a plurality of parts screwed together, packing arranged in the barrel below the seating ring, the lower part of the barrel having a threaded connection with the upper part of the barrel and bearing against the packing, the upper part of the barrel having a threaded connection and bearing against the packing whereby the packing is compressed, said packing bearing against the plunger.

2. In a deep well pump, tubing in which the pump operates, said pump including a barrel, a hollow punger recprocally mounted in the barrel, a seat in the tubing, a seating ring on the barrel, said seating ring resting on the seat in the tubing, said barrel including a plurality of parts screwed together, packing arranged in the barrel below the seating ring, the lower` part of the barrel having a threaded connection with the upper part of the barrel and bearing against the packing, the upper part of the barrel having a threaded connection and bearing against the packing whereby the packing is compressed, said packing bearing against the plunger, and said barrel having discharge ports above the seat through which the fluid discharged by the pump passes.

DANIEL W. HOFERER. 

